Avirulent mutant of a strain of ornithosis agent obtained by gamma irradiation.
D000818:Animals; D002645:Chickens / Q000276:immunology; D002689:Chlamydia / Q000528:radiation effects*; D003168:Complement Fixation Tests; D008297:Male; D051379:Mice / Q000276:immunology; D011201:Poultry Diseases / Q000517:prevention & control*; D009956:Psittacosis / Q000276:immunology* / Q000517:prevention & control; D011830:Radiation Effects; D014765:Viral Vaccines; D014776:Virus Cultivation
D014765:Viral Vaccines